#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
union test {
	int x;
	char y;
	float z;
};
int main()
{
	float x = 2.5, y = 4.7;
	int a = 7;
	printf("%.1f", x + a % 3 * (int)(x + y) % 2 / 4);
	printf("\n%d", sizeof(union test));
	return 0;
}